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US Patent: 640,500
James L. Taylor - Newark, NJ

USPTO Classifications:
269/171.5, 269/189, 269/215

Tool Categories:
work holding : clamps : bar and pipe clamps


Not known to have been produced

C. B. Pitney
Charles H. Pell
Alfred R. Krousse
Russell M. Everett

Patent Dates:
Applied: Aug. 23, 1899
Granted: Jan. 02, 1900

Patent Pictures:
James L. Taylor patent January 2, 1900
USPTO pdf tiff
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Bar clamp with the adjustable jaw sliding on the bar. Fine toothed inserts are placed at the points where the adjustable jaw contacts the bar when clamping force is applied. A spring holds the adjustable jaw in position with the teeth contacting the bar; the adjustable jaw thus can only move when it can be tipped "forward" toward the fixed jaw. The patent includes the end stop on the bar.

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